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Finding the Fourth Proportional to 377,117.92, 520,431.63 and 205,045.72

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Solution

The fourth proportional to 377,117.92, 520,431.63 and 205,045.72 is: 282,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,117.92 : 520,431.63 = 205,045.72 : x
  2. Step 2: Convert to fraction form
    377,117.92/520,431.63 = 205,045.72/x
  3. Step 3: Cross multiply
    377,117.92x = 520,431.63 × 205,045.72
  4. Step 4: Simplify right side
    377,117.92x = 106,712,278,284.12
  5. Step 5: Solve for x
    x = 106,712,278,284.12/377,117.92
  6. Step 6: Final answer
    x = 282,967.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.